V-Lab
NX Filtration N.V. GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, August 4th, 2026
1 Day
56.28%
decreased by 11.04%
1 Week
58.21%
decreased by 9.11%
1 Month
65.16%
decreased by 2.16%
Analysis last updated: Tuesday, August 4, 2026 at 06:34 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 15, 2021 to Jul 31, 2026Model Insight
With persistence 0.996, volatility shocks have a half-life of 169 trading days (~0.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 2.95 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 119.7971 | 5.43*** |
α ARCH Response to squared shocks | 0.1700 | 65.51*** |
β GARCH Volatility persistence | 0.9959 | 1,451.76*** |
ν DF Student-t tail thickness | 2.9523 | 61.19*** |
Persistence:
0.996
Half-life:
169 days
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